CN1194328A - Technology for producing non-standard size integrated-joint petroleum casing - Google Patents
Technology for producing non-standard size integrated-joint petroleum casing Download PDFInfo
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- CN1194328A CN1194328A CN98113941A CN98113941A CN1194328A CN 1194328 A CN1194328 A CN 1194328A CN 98113941 A CN98113941 A CN 98113941A CN 98113941 A CN98113941 A CN 98113941A CN 1194328 A CN1194328 A CN 1194328A
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- tube
- tubing
- qualified
- standard size
- latus rectum
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- Earth Drilling (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
After the end of material pipe is heated to forging temperature and preforged to form in end thickening equipment, the material pipe is machined into non-standard size petroleum casing with integrated joint through the steps of heat treatment, straightening, cutting, default detection, chasing and others. Compared with casing produced through welding process, the said casing has greatly improve integral mechanical performance, high reliability and long service life. The said technological process is simple and practical.
Description
The present invention relates to a kind of production technology that is used for oil drilling, overhaul facilities processing and manufacturing, particularly a kind of production technology that is used for the integral joint off-standard size petroleum casing pipe of the following specification cased well of ∮ 139mm.
Petroleum casing pipe is the capital equipment of oil well, water injection well.Generally, oil-water well all adopts the sleeve pipe by serial required standard size, along with the development of oil field development and oil, well overhaul pipeline, the specification and the quantity of well workover sleeve pipe constantly increase, and particularly need a large amount of off-standard size sleeve pipes during with the cased hole well workover at ∮ 139mm.At present, adopt welding manner to be connected between the on-the-spot off-standard size petroleum casing pipe body that uses and the box cupling.The sleeve pipe complex process that this mode is produced, the concentricity of box cupling and body is poor, and weld seam position intensity can only reach 90% of body, and the quality instability influences sleeve pipe application life greatly.
The object of the present invention is to provide a kind of production technology simple, can avoid giving casing strength, bringing the integral joint formula off-standard size petroleum casing pipe production technology of adverse effect application life because of welding.
The present invention realizes like this.This kind production technology is that the pipe end with mother tube is heated to initial forging temperature, upset on the end upsetting equipment of special use then, one-shot forming, then carry out suitable heat treatment, through on lathe, being lathed the joint of the dimensions that requires after the alignment, realize that joint is connected with the integral body of body, thereby produce the petroleum casing pipe of integral joint formula off-standard size.This production technology is implemented by following process:
1, mother tube flaw detection go-on-go.Mother tube is placed on the fluxoid tube ndt line, detect its degree of corrosion, transverse cracks and tube wall thickness situation of change, change qualified tubing go-on-go over to next procedure;
2, end upsetting.The qualified tubing of flaw detection is delivered to the end upsetting machine that contains heating system, hydraulic system; After one end of tubing is heated to initial forging temperature (Ac3+400--450 ℃ of steel transformation temperature), put in the mould, under the hydraulic system effect,, thicken into joint the pipe end one-shot forming;
3, heat treatment.The qualified sleeve pipe of thickening is heat-treated on the intermediate frequency Equipment for Heating Processing, make it to reach desired mechanical performance, promptly handle the requirement that a performance indications such as back drawing pipe intensity, yield strength, elongation per unit length, toughness satisfy " APISPEC 5CT standard " middle J55 and N80 steel-grade bushing;
4, alignment.Tubing after the heat treatment is placed alignment on the straightener;
5, turning upset end.Tubing after the alignment delivered to carry out turning on the lathe, car goes the upset end surplus, obtains production tube;
6, production tube flaw detection, latus rectum.Production tube placed on the 6 passage ultrasonic wave tube ndt lines check, survey longitudinal crack, pick out the failure, then to body total length latus rectum;
7, thread cutting, latus rectum.With qualified production tube two ends car system BCSG type screw thread, double thread position latus rectum then.
By above-mentioned operation, get final product the petroleum casing pipe that processing and manufacturing goes out integral joint formula off-standard size.
End upsetting technology provided by the invention has realized the globality of sleeve pipe body and box cupling, than the sleeve pipe of welding manner production bigger improvement is arranged all on overall mechanical properties, can improve the reliability of petroleum casing pipe work, increases the service life.This production technology also has advantages such as technology is simple, easy to implement, can replace the existing off-standard size petroleum casing pipe welding mode of production.
Claims (1)
1, a kind of technology for producing non-standard size integrated-joint petroleum casing is characterized in that, this production technology is implemented by following process:
A, mother tube flaw detection, go-on-go place mother tube and detect its degree of corrosion, transverse cracks and tube wall thickness situation of change on the fluxoid tube ndt line, change qualified tubing go-on-go over to next procedure;
B, the tubing that it is qualified that end upsetting will be detected a flaw are delivered to the end upsetting machine, put in the mould after tubing one end is heated to initial forging temperature, with the pipe end one-shot forming, thicken into joint under the hydraulic system effect;
C, heat treatment will be thickeied qualified sleeve pipe and be heat-treated on the intermediate frequency Equipment for Heating Processing, make it to reach desired mechanical performance;
D, the alignment tubing after with heat treatment places alignment on the straightener;
E, the turning upset end tubing after with alignment is delivered to the lathe upset end surplus of getting on the bus;
F, production tube flaw detection, latus rectum place production tube on the 6 passage ultrasonic wave tube ndt lines and check, and pick out the failure, then to body total length latus rectum;
G, thread cutting, latus rectum on pipe threading machine with qualified production tube two ends thread cutting, double thread position latus rectum then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113941A CN1194328A (en) | 1998-04-24 | 1998-04-24 | Technology for producing non-standard size integrated-joint petroleum casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113941A CN1194328A (en) | 1998-04-24 | 1998-04-24 | Technology for producing non-standard size integrated-joint petroleum casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1194328A true CN1194328A (en) | 1998-09-30 |
Family
ID=5223631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98113941A Pending CN1194328A (en) | 1998-04-24 | 1998-04-24 | Technology for producing non-standard size integrated-joint petroleum casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1194328A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412312C (en) * | 2006-08-10 | 2008-08-20 | 中国海洋石油总公司 | Method and device for repairing oil/gas drilling bushing |
| CN103068519A (en) * | 2010-04-09 | 2013-04-24 | 达涅利机械设备股份公司 | Machine for the threading of sleeves or suchlike, and relative method |
| CN103481038A (en) * | 2013-09-24 | 2014-01-01 | 上海海隆石油管材研究所 | Machining method for high-station structure of drill rod |
| CN103495839A (en) * | 2013-09-24 | 2014-01-08 | 上海海隆石油管材研究所 | Machining method of quick-trip drill pipe high-position structure formed in built-up welding mode |
| CN107214479A (en) * | 2017-07-19 | 2017-09-29 | 无锡双马钻探工具有限公司 | A kind of heavy weight drill pipe manufacturing process |
| CN110640396A (en) * | 2018-06-27 | 2020-01-03 | 宝山钢铁股份有限公司 | Method for controlling drift diameter of thick line thickened oil pipe |
-
1998
- 1998-04-24 CN CN98113941A patent/CN1194328A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412312C (en) * | 2006-08-10 | 2008-08-20 | 中国海洋石油总公司 | Method and device for repairing oil/gas drilling bushing |
| CN103068519A (en) * | 2010-04-09 | 2013-04-24 | 达涅利机械设备股份公司 | Machine for the threading of sleeves or suchlike, and relative method |
| CN103068519B (en) * | 2010-04-09 | 2016-08-17 | 达涅利机械设备股份公司 | For processing machine and the correlation technique of screw thread to sleeve pipe or the like |
| CN103481038A (en) * | 2013-09-24 | 2014-01-01 | 上海海隆石油管材研究所 | Machining method for high-station structure of drill rod |
| CN103495839A (en) * | 2013-09-24 | 2014-01-08 | 上海海隆石油管材研究所 | Machining method of quick-trip drill pipe high-position structure formed in built-up welding mode |
| CN103495839B (en) * | 2013-09-24 | 2015-11-25 | 上海海隆石油管材研究所 | The processing method of what a kind of built-up welding was shaping make a trip fast drilling rod height station structure |
| CN107214479A (en) * | 2017-07-19 | 2017-09-29 | 无锡双马钻探工具有限公司 | A kind of heavy weight drill pipe manufacturing process |
| CN107214479B (en) * | 2017-07-19 | 2019-10-11 | 无锡双马钻探工具有限公司 | A kind of heavy weight drill pipe manufacturing process |
| CN110640396A (en) * | 2018-06-27 | 2020-01-03 | 宝山钢铁股份有限公司 | Method for controlling drift diameter of thick line thickened oil pipe |
| CN110640396B (en) * | 2018-06-27 | 2022-03-18 | 宝山钢铁股份有限公司 | Method for controlling drift diameter of thick line thickened oil pipe |
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| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |